Usually when it is breezy it’s only closed to double deckers and trucks.
These are the diversion routes ALL traffic is having to use
Southbound traffic is currently being diverted from the M90 motorway at the Admiralty junction onto the A985 to Kincardine.
Northbound traffic on approach to the Forth Road Bridge is being diverted off the A90 at Echline and can travel along the A904 to join the M9 at Junction 2, or be turned around to travel to M9 J1A.
Adds about 35 miles to your journey.
But as no traffic can use the FRB, journeys times are a bit of a lottery.